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authorAlexander Aring <aahringo@redhat.com>2021-04-04 20:30:52 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-04-28 12:05:46 +0200
commitf803e37721125e03478a7a7a75162f584bb72055 (patch)
tree426701b17a4391a9f462dc4de359fa1253613820
parentf3af74520457f21d925c45a6bcc821994ebc426a (diff)
net: ieee802154: forbid monitor for add llsec seclevel
[ Upstream commit 9ec87e322428d4734ac647d1a8e507434086993d ] This patch forbids to add llsec seclevel for monitor interfaces which we don't support yet. Otherwise we will access llsec mib which isn't initialized for monitors. Signed-off-by: Alexander Aring <aahringo@redhat.com> Link: https://lore.kernel.org/r/20210405003054.256017-14-aahringo@redhat.com Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r--net/ieee802154/nl802154.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c
index f07a3027d66c..b2ff2f7329c3 100644
--- a/net/ieee802154/nl802154.c
+++ b/net/ieee802154/nl802154.c
@@ -2103,6 +2103,9 @@ static int nl802154_add_llsec_seclevel(struct sk_buff *skb,
struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
struct ieee802154_llsec_seclevel sl;
+ if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
+ return -EOPNOTSUPP;
+
if (llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL],
&sl) < 0)
return -EINVAL;